Question

英语问题！

英语问题！it is difficult to the point of impossibility for the average reader under the age of forty to imagine a time when high-quality arts critism could be found in most big-city newspaper.
其中to the point of impossible 是做什么成分？
是 to do 做主语吗，it做形式主语

Answer 1

to the point of impossibility 是介词短语作状语，修饰形容词difficult, 汉语意思：难到一个不可能的程度。
没错，It 是形式主语，真正的主语是：for the average reader ... to imagine ...( for Sb to do sth）

追答

谢谢采纳

Answer 2

加上逗号可能会好理解一些
it is difficult， to the point of impossibility，for the average reader under the age of forty to imagine a time when high-quality arts critism could be found in most big-city newspaper.
主干应该是it is difficult for the reader to imagine
to the point of impossibility应该是插入语，意为：就不可能性而言

Answer 3

翻译的时候可以当做very 来看